Search a number
-
+
103211253 = 3489103139
BaseRepresentation
bin1100010011011…
…10000011110101
321012012200020000
412021232003311
5202410230003
614124101513
72362165305
oct611560365
9235180200
10103211253
1153295162
122a694899
13184c9362
14d9c9605
1590db1a3
hex626e0f5

103211253 has 40 divisors (see below), whose sum is σ = 158558400. Its totient is φ = 66889152.

The previous prime is 103211239. The next prime is 103211293. The reversal of 103211253 is 352112301.

It is not a de Polignac number, because 103211253 - 210 = 103210229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103211293) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 742458 + ... + 742596.

It is an arithmetic number, because the mean of its divisors is an integer number (3963960).

Almost surely, 2103211253 is an apocalyptic number.

It is an amenable number.

103211253 is a deficient number, since it is larger than the sum of its proper divisors (55347147).

103211253 is a wasteful number, since it uses less digits than its factorization.

103211253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 103211253 is about 10159.2939223157. The cubic root of 103211253 is about 469.0750679603.

Adding to 103211253 its reverse (352112301), we get a palindrome (455323554).

The spelling of 103211253 in words is "one hundred three million, two hundred eleven thousand, two hundred fifty-three".

Divisors: 1 3 9 27 81 89 103 139 267 309 417 801 927 1251 2403 2781 3753 7209 8343 9167 11259 12371 14317 27501 37113 42951 82503 111339 128853 247509 334017 386559 742527 1002051 1159677 1274213 3822639 11467917 34403751 103211253